B-113-421 was a Brute Minor, notable for his loud animalistic battle cries. He is credited with over a dozen UNSC kills. His cries echoing through the valley reportedly inspired fear in many Marines. The last sighting of this Brute was along the top of the New Mombasa ridge just moments after John-117's capture. His fate is currently unknown. He was expected to be an extremely fierce warrior, as both of the blades of his Spiker were missing, and most likely were torn off in combat, possibly breaking off when lodged into his victims.